Nike was very heavily criticized for the working/living conditions of workers at the factories that made Nike shoes.
For quite sometime, Nike hid behind the claim that they were not shoe manufacturers, but a sports product design and marketing company, and that the actual conditions of the workers were not Nike's business.
What you are telling me "Apple makes them most money though " is that Apple has a great deal of leverage with FoxConn, and that Apple can use that leverage as Nike did to dramatically improve and police the conditions of the FoxConn employees.
And if Steve Jobs had, or Tim Cook would, tell their users that in the future prices would take a $10 jump per player to ensure they were manufactured in better conditions, my guess is that it would affect sales in much the same way that Nike's sales were affected (which is to say, increase.)